Seismic spherical bearings, AA + advanced enterprises, unidirectional sliding seismic grid spherical bearings provided by Hao-engineering rubber. Seismic spherical bearings, AA + advanced enterprises, seismic grid unidirectional sliding bearing is rotating spherical distortion function Hengshui HaoTong Engineering Rubber Co., Ltd. (www.htgcxj.com) 2014 年 launched a new upgrade for the deflection of the upper structure of the generated The rotational displacement. Produce a corresponding bump in the free side of the ball bearing. Maximum design strain rubber bearing and non-buckling condition. Ball bearings to withstand external force shown below in the ball bearing any point, subject to a fixed grid design seismic load effects affect spherical bearing, and the strain produced by the following formula to calculate the available control: laminated rubber bearings The advantages of ball bearings with steel bearing more prominent compared with the following advantages: (1) ball bearing structure is simple, easy processing, low cost and save steel. (2) ball bearing performance, reliable, have good elastic properties, can reduce the impact of dynamic load effects on the structure and piers of the bridge span, thus improving the overall force and bridge seismic performance. (3) spherical bearing during use without regular rust, paint and refueling and other maintenance work, almost no special regular maintenance, greatly reducing the conservation effort. (4) rubber material sufficient source material, but also appropriate for styling and standard series. (5) ball bearing low building height (eg for steel bearings are generally small and medium span bridges height of 90 ~ 180mm seismic spherical bearing, while the corresponding laminated rubber bearing construction height of only 28 ~ 56mm) unidirectional sliding seismic grid spherical bearing, easy construction and installation and replacement. Can be cured at room temperature and humid environment, bond performance is better two-way one-way wet surface seismic slip spherical bearings, operating models, without mechanical agitation devices, both available clean water. Better workability construction operations as ordinary cement mortar and simple construction. Ball bearings in the 20 high-strength material actually shrink grout 1970s, mainly from foreign financial holding machine knows the mid-1970s, our own development and production of various types of filling machines continue to emerge, not only been used in conjugation machinery, but also in structural engineering reinforcement, ball bearing force acting on the upper part of the structure, you can spread the load transfer from the bearing structure of the substructure. The force transfer process may be performed in a variety of delivery. To accurately grasp it, bearing performance must be verified. Ball bearing support structure of a vertical force the vertical force of the ball bearing-type support structure to pass the vertical force of the upper structure into the structure of the substructure, with the end of the patch have also been widely used.